SUBJECT  :-    	CRITICAL: Current disk space consumption has reached a critical limit.
 
 
MESSAGE  :-	Your current disk space consumption has reached a critical limit. To allow users to operate beyond this can cause MySQL database corruption.Please clean up your disk space or buy additional disk quota.
 
 
SIGNATURE:-     *** This message is automatically generated by the mail system. ***
 

The message is from: root@zeke.hosts.net.nz

My questions are: Who is zeke.hosts.net.nz, and what does the message mean?

I use GMail, xtra email and email from FreeParking.

Thanks in advance.